Add pre-commit hook for clang-format

- exclude unwanted directories by adding disabling .clang-format files
- also add a hooks for line endings, trailing spaces and case/merge conflicts

Author: mrbean-bremen

.pre-commit-config.yaml

@@ -0,0 +1,14 @@
+repos:
+  - repo: https://github.com/pre-commit/mirrors-clang-format
+    rev: "v21.1.5"
+    hooks:
+      - id: clang-format
+
+
+  - repo: https://github.com/pre-commit/pre-commit-hooks
+    rev: v6.0.0
+    hooks:
+      - id: check-case-conflict
+      - id: check-merge-conflict
+      - id: trailing-whitespace
+      - id: mixed-line-ending

generated_cpp_515/.clang-format

@@ -0,0 +1,2 @@
+DisableFormat: true
+SortIncludes: Never

generator/simplecpp/.clang-format

@@ -0,0 +1,2 @@
+DisableFormat: true
+SortIncludes: Never

run-clang-format.sh

@@ -4,19 +4,4 @@ which -a clang-format-20 > /dev/null \
 	||  (echo -e "20.0.0\n$(clang-format${1+-$1} --version | grep -Eo '([0-9]+\.[0-9]+\.[0-9]+)')" | sort -CV ) \
 		|| { echo "use '${0} <clang-format-version-not-less-than-20>' to call exact proper version" ; exit 1 ; }
 
-IGNORED_DIRS=(
-    "./generated_cpp_515"
-    "./examples"
-    "./generator/simplecpp"
-    "./build"
-)
-
-IGNORE_CMD=""
-
-for DIR in "${IGNORED_DIRS[@]}"; do
-    IGNORE_CMD+=" -path $DIR -o"
-done
-
-IGNORE_CMD=${IGNORE_CMD% -o}
-
-find . \( $IGNORE_CMD \) -prune -o -name '*.cpp' -print0 -o -name '*.h' -print0 | xargs -0 clang-format-20 --style=file -i
+find . -prune -o -name '*.cpp' -print0 -o -name '*.h' -print0 | xargs -0 clang-format-20 --style=file -i